1 // RUN: %clang_cc1 -x objective-c -fsyntax-only -fobjc-default-synthesize-properties -verify %s 2 // RUN: %clang_cc1 -x objective-c++ -fsyntax-only -fobjc-default-synthesize-properties -verify %s 3 // rdar://8843851 4 5 @interface StopAccessingIvarsDirectlyExample 6 @property(strong) id name, rank, serialNumber; 7 @end 8 9 @implementation StopAccessingIvarsDirectlyExample 10 11 - (void)identifyYourSelf { 12 if (self.name && self.rank && self.serialNumber) 13 self.name = 0; 14 } 15 16 // @synthesize name, rank, serialNumber; 17 // default synthesis allows direct access to property ivars. 18 - (id)init { 19 _name = _rank = _serialNumber = 0; 20 return self; 21 } 22 23 - (void)dealloc { 24 } 25 @end 26 27 28 // Test2 29 @interface Test2 30 @property(strong, nonatomic) id object; 31 @end 32 33 // object has user declared setter/getter so it won't be 34 // default synthesized; thus causing user error. 35 @implementation Test2 36 - (id) bar { return object; } // expected-error {{use of undeclared identifier 'object'}} 37 - (void)setObject:(id)newObject {} 38 - (id)object { return 0; } 39 @end 40 41 // Test3 42 @interface Test3 43 { 44 id uid; 45 } 46 @property (readwrite, assign) id uid; 47 @end 48 49 @implementation Test3 50 // Oops, forgot to write @synthesize! will be default synthesized 51 - (void) myMethod { 52 self.uid = 0; // Use of the setter 53 uid = 0; // Use of the wrong instance variable 54 _uid = 0; // Use of the property instance variable 55 } 56 @end 57 58 @interface Test4 { 59 id _var; 60 } 61 @property (readwrite, assign) id var; 62 @end 63 64 65 // default synthesize property named 'var' 66 @implementation Test4 67 - (id) myMethod { 68 return self->_var; // compiles because 'var' is synthesized by default 69 } 70 @end 71 72 @interface Test5 73 { 74 id _var; 75 } 76 @property (readwrite, assign) id var; 77 @end 78 79 // default synthesis of property 'var' 80 @implementation Test5 81 - (id) myMethod { 82 Test5 *foo = 0; 83 return foo->_var; // OK 84 } 85 @end 86 87 @interface Test6 88 { 89 id _var; // expected-note {{'_var' declared here}} 90 } 91 @property (readwrite, assign) id var; 92 @end 93 94 // no default synthesis. So error is expected. 95 @implementation Test6 96 - (id) myMethod 97 { 98 return var; // expected-error {{use of undeclared identifier 'var'}} 99 } 100 @synthesize var = _var; 101 @end 102 103 int* _object; 104 105 @interface Test7 106 @property (readwrite, assign) id object; 107 @end 108 109 // With default synthesis, '_object' is be the synthesized ivar not the global 110 // 'int*' object. So no error. 111 @implementation Test7 112 - (id) myMethod { 113 return _object; 114 } 115 @end 116 117
